[booduh]

I was going to say just get up and leave, until I saw that you had dependents.

If you leave and the pain of going it alone is more than you experienced at your 9-5, and you aren't feeling fulfilled, then you have gained a very valuable bit of insight. Same deal if you have the time of your life.

Only way to know is to just do it.

But as you have kids-- its not about you as much anymore.

Get smarter about your job, become indispensable, hold your nose and kiss up without shame, build your cushion, then jet.

You could also spend the time you have working on the idea and crafting a (tested) vision, then outsource the actual creation of the product with funds from your 9-5.